5 papers
Enhanced thermopower in a magnetic semiconductor EuTe4 with multiple charge-density-wave instabilities/
Hidefumi Takahashi, Kiichiro Yoshida, Akitoshi Nakano +1
We investigate the layered magnetic semiconductor EuTe4, focusing on its intricate charge-density wave (CDW) states near and above room temperature through single-crystal X-ray dif…
A rutile-based homologous series Na(PtO) discovered by computationally assisted high-pressure synthesis
Yasuhito Kobayashi, Hidefumi Takahashi, Shunsuke Kitou +4
Layered transition metal oxides typified by the Ruddlesden-Popper phase have been extensively studied for its applications in high-temperature superconductivity, catalysis, and bat…
Exploration of metastable A-site-ordered perovskites (Ca,Ba)FeO3-δ by computationally-guided multi-step synthesis
Masaho Onose, Hidefumi Takahashi, Hajime Sagayama +2
Perovskite-type iron oxides with Fe4+ ions have attracted much attention for their versatile helimagnetic phases. While the introduction of a layered A-site ordered structure to AF…
Mass enhancement and metal-nonmetal transition driven by d-f hybridization in perovskites La1-xPrxCuO3
H. Takahashi, M. Ito, J. Fujioka +6
We report the large electron-mass enhancement and the metal to nonmetal transition upon the Pr doping in perovskite-type La1-xPrxCuO3. With increasing the Pr content x around 0.6,…
Observation of converse flexoelectric effect in topological semimetals
Hidefumi Takahashi, Yusuke Kurosaka, Kenta Kimura +2
A strong coupling between electric polarization and elastic deformation in solids is an important factor in creating useful electromechanical nanodevices. Such coupling is typicall…